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| author | Peter Maydell <peter.maydell@linaro.org> | 2014-02-20 10:35:50 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-02-20 10:35:50 +0000 |
| commit | 67d43538aee10b6cfe8f3606c69187a3e142a2ba (patch) | |
| tree | 4eb0637464a3011cc1ecc91b4e4ae9e6867d8445 /target-arm/helper-a64.h | |
| parent | bc242f9bb6324a50e7572c0997904b66b630f73a (diff) | |
softfloat: Support halving the result of muladd operation
The ARMv8 instruction set includes a fused floating point
reciprocal square root step instruction which demands an
"(x * y + z) / 2" fused operation. Support this by adding
a flag to the softfloat muladd operations which requests
that the result is halved before rounding.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-arm/helper-a64.h')
0 files changed, 0 insertions, 0 deletions